【背景】定期A核代码告警清零。

【修改方案】
根据工具扫描结果，对代码告警进行更改。

【影响】
对现有的产品编译不会有影响。

re #I4378T
Signed-off-by: Nwangchen <253227059@qq.com>

add BUILD.gn for all kernel modules
Signed-off-by: NCaoruihong <crh.cao@huawei.com>
Change-Id: I018446427bf64615f2596d47862b219659b58b34

增加mount的MS_RDONLY标志的支持，并修改vfs主要接口相关支持。
1. fatfs lseek接口在分区以MS_RDONLY方式和文件以只读打开时不再能够扩大文件的大小。
2. 直接在镜像中创建storage目录，而不是在挂载根文件系统时创建storage目录。
3. 增加了MS_RDONLY的测试用例。

Close #I3Z1W6
Signed-off-by: NFar <yesiyuan2@huawei.com>

1、bootargs解析与rootfs挂载进行解耦；
2、支持开发者自定义bootargs参数，内核存储bootargs中所有参数；
3、开发者可获取bootargs中的参数内容，并自行解析。

close #I41CL8

Change-Id: If384476714854ba0cf64eb70b785eb26737dd3d2
Signed-off-by: Nchenjing <chenjing139@huawei.com>

驱动目录位置不合理，需要调整到/device/qemu/drivers下面

close #I3XW96 #I3XWXD

Change-Id: Ied6b90d2d0631c99f2209f5b72bbd12cdff6b1d5
Signed-off-by: NGuangyao Ma <guangyao.ma@outlook.com>

在内核解析bootargs参数时，加入对userAddr与userSize两个字段的解析。
1、如果bootargs中配置了userAddr与userSize，则使用配置值划分storage分区。
2、如果bootargs中未配置这两个字段，则storage分区默认紧接在rootfs分区后。

close #I3XNEY
Signed-off-by: Nchenjing <chenjing139@huawei.com>
Change-Id: Iba63ccd7fc3f7efc1d726c4b38beee5df1d64122

1.remove redundant headfile in kernel, such as:
  compiler.h;debug.h;automount.h;inode.h;syslog.h;net.h;
2.split fs.h to file.h and driver.h
3.move vnode.h and path_cache.h to vfs/include
4.remove redundant interface and defines

close: #I3RTNR
Signed-off-by: Nmucor <mucorwang@gmail.com>

Signed-off-by: Nlzl <sucer_fater@163.com>

issue#I3O8IF的修改中，将fat无法识别的格式错误码由ENOENT改为ENOTSUP。此处修改有遗漏，造成无fat格式的userdata分区无法挂载。

Provide a separate configuration macro for boot environment in RAM.
Depends on: Need to copy boot environment data to the specified ram by boot.

Closes #I3OADR

Change-Id: Ie36a92c0a44f245482d1602c3a6851395944776d

Change-Id: I052d930d54e63179b17b77f02c107a015f3cfc3f

1. Bcache block with high mem address is after lower mem address in RCU list when initing bcache.
2. Format will clear the bcache before writing the FAT.
3. The fatfs_readdir use the bcache writing block to reduce the chance of data switching out
4. Add performance analysing macron switch

Change-Id: I8fbc48418509d2e660d725d2c265266e931c26f8

Change-Id: I94175fa89a61f4f08d9f921203bedfc2dd9e53e4

Feature or Bugfix:Feature
Binary Source:Huawei
PrivateCode(Yes/No):Yes

Change-Id: I175d2648bc6f9078c34de2c0a5c93fda10b86c47
ChangeID:13306388

Currently unused but when rootfs is enabled
we should get this error and quickly narrow down
where to add proper bootargs handling.
Signed-off-by: NZbigniew Bodek <zbigniew.bodek@huawei.com>
Change-Id: Ie8d96fc3b6ad7cc33abe67530ca8ff9526b46855

Change-Id: Ia6c1f6302407a707b3ec9b805f4c92d8a7970b86